1 School of Medicine (MR), University of Missouri-Columbia, Columbia, Missouri; Division of Hematology and Oncology (JEA), Columbia University Irving Medical Center, New York, New York; Departments of Pathology and Cell Biology (DCP), Neurology (MRW), Radiology (G. Moonis), and Ophthalmology (G. Moazami), Columbia University Irving Medical Center, New York, New York.